Chalastra (Greek: Χαλάστρα) is a town and former municipality in the Thessaloniki regional unit, Greece.

[3] The town is located 20 km west from the city of Thessaloniki, on the north side of Greek National Road 1, near the Axios river and the Thermaic Gulf.

The population was 9,066 inhabitants according to the 2021 census, most of them working in agriculture and small industry.

[4] Chalastra (Ancient Greek: Χαλάστρα, Strabo vii.

§ 46) was known as a town of Mygdonia in ancient Macedonia, situated on the Thermaikos gulf at the mouth of the Axios river, which belonged to the Thracians and possessed a harbor.

[7] A large part of the population was absorbed in Thessaloniki when it was founded by Cassander.